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Dinevska M, Widodo SS, Cook L, Stylli SS, Ramsay RG, Mantamadiotis T. CREB: A multifaceted transcriptional regulator of neural and immune function in CNS tumors. Brain Behav Immun 2024; 116:140-149. [PMID: 38070619 DOI: 10.1016/j.bbi.2023.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 11/16/2023] [Accepted: 12/04/2023] [Indexed: 01/21/2024] Open
Abstract
Cancers of the central nervous system (CNS) are unique with respect to their tumor microenvironment. Such a status is due to immune-privilege and the cellular behaviors within a highly networked, neural-rich milieu. During tumor development in the CNS, neural, immune and cancer cells establish complex cell-to-cell communication networks which mimic physiological functions, including paracrine signaling and synapse-like formations. This crosstalk regulates diverse pathological functions contributing to tumor progression. In the CNS, regulation of physiological and pathological functions relies on various cell signaling and transcription programs. At the core of these events lies the cyclic adenosine monophosphate (cAMP) response element binding protein (CREB), a master transcriptional regulator in the CNS. CREB is a kinase inducible transcription factor which regulates many CNS functions, including neurogenesis, neuronal survival, neuronal activation and long-term memory. Here, we discuss how CREB-regulated mechanisms operating in diverse cell types, which control development and function of the CNS, are co-opted in CNS tumors.
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Affiliation(s)
- Marija Dinevska
- Department of Surgery, Royal Melbourne Hospital, The University of Melbourne, Parkville, VIC, Australia
| | - Samuel S Widodo
- Department of Surgery, Royal Melbourne Hospital, The University of Melbourne, Parkville, VIC, Australia
| | - Laura Cook
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Parkville, VIC, Australia
| | - Stanley S Stylli
- Department of Surgery, Royal Melbourne Hospital, The University of Melbourne, Parkville, VIC, Australia; Department of Neurosurgery, Royal Melbourne Hospital, Parkville, VIC, Australia
| | - Robert G Ramsay
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, Australia; Sir Peter MacCallum Department of Oncology and the Department of Clinical Pathology, The University of Melbourne, Melbourne, Australia
| | - Theo Mantamadiotis
- Department of Surgery, Royal Melbourne Hospital, The University of Melbourne, Parkville, VIC, Australia; Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Parkville, VIC, Australia; Centre for Stem Cell Systems, The University of Melbourne, Parkville, VIC, Australia.
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Leung HW, Foo G, VanDongen A. Arc Regulates Transcription of Genes for Plasticity, Excitability and Alzheimer’s Disease. Biomedicines 2022; 10:biomedicines10081946. [PMID: 36009494 PMCID: PMC9405677 DOI: 10.3390/biomedicines10081946] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/21/2022] [Accepted: 07/25/2022] [Indexed: 02/06/2023] Open
Abstract
The immediate early gene Arc is a master regulator of synaptic function and a critical determinant of memory consolidation. Here, we show that Arc interacts with dynamic chromatin and closely associates with histone markers for active enhancers and transcription in cultured rat hippocampal neurons. Both these histone modifications, H3K27Ac and H3K9Ac, have recently been shown to be upregulated in late-onset Alzheimer’s disease (AD). When Arc induction by pharmacological network activation was prevented using a short hairpin RNA, the expression profile was altered for over 1900 genes, which included genes associated with synaptic function, neuronal plasticity, intrinsic excitability, and signalling pathways. Interestingly, about 100 Arc-dependent genes are associated with the pathophysiology of AD. When endogenous Arc expression was induced in HEK293T cells, the transcription of many neuronal genes was increased, suggesting that Arc can control expression in the absence of activated signalling pathways. Taken together, these data establish Arc as a master regulator of neuronal activity-dependent gene expression and suggest that it plays a significant role in the pathophysiology of AD.
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Affiliation(s)
| | - Gabriel Foo
- Duke-NUS Medical School, Singapore 169857, Singapore
| | - Antonius VanDongen
- Duke-NUS Medical School, Singapore 169857, Singapore
- Department of Pharmacology and Cancer Biology, Duke University, Durham, NC 27710, USA
- Correspondence:
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Tsoi B, Gao C, Yan S, Du Q, Yu H, Li P, Deng J, Shen J. Camellia nitidissima Chi extract promotes adult hippocampal neurogenesis and attenuates chronic corticosterone-induced depressive behaviours through regulating Akt/GSK3β/CREB signaling pathway. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Ren L, Zhang H, Tao W, Chen Y, Zou Z, Guo X, Shen Q, Feng Q, Hu J. The Rapid and Long-Lasting Antidepressant Effects of Iridoid Fraction in Gardenia Jasminoides J.Ellis Are Dependent on Activating PKA-CREB Signaling Pathway. Front Pharmacol 2022; 13:896628. [PMID: 35754496 PMCID: PMC9213885 DOI: 10.3389/fphar.2022.896628] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 04/14/2022] [Indexed: 11/13/2022] Open
Abstract
Lag periods of therapeutic efficacy cause poor compliance of patients, which has made solutions for rapid antidepressants the most urgent need in the depression study field at present. We have identified through our previous studies the rapid antidepressant effects of the traditional herb Gardenia jasminoides J.Ellis [Rubiaceae] (GJ) and its standardized fractions. Through screening different fractions of GJ, we decided to place our focus on the iridoid fraction of GJ (GJ-IF). Methods: 1. Tail suspension test (TST), forced swimming test (FST), and novelty suppressed-feeding test (NSFT) were performed in sequence on mice after GJ-IF administration. 2. Mice in the model group were under chronic unpredictable mild stress (CUMS) for 3 w. After GJ-IF treatment, mice were placed in an open field test (OFT), Sucrose preference test (SPT), NSFT, TST, and FST. 3. Western Blot was performed to examine the expression of brain-derived neurotrophic factor (BDNF), Synapsin 1, cyclic-AMP dependent protein kinase A (PKA), phosphorylated cyclic-AMP responsive element-binding protein (p-CREB), and cAMP response element-binding protein (CREB). 4. Mice in the test group were administrated with GJ-IF after intraperitoneal injection of PKA blocker H89. Results: 1. GJ-IF treatment significantly reduced the immobility time of TST at 1 d and FST at 26 h. 2. GJ-IF reversed the deficits induced by 3 w CUMS in SPT, TST, FST, and NSFT at 1 d and 26 h. The antidepressant effects of a single dose of iridoid fraction could also last for at least 14 d. 3. The results of molecule studies suggested that a single dose of GJ-IF activated p-CREB at 2 h and the PKA-CREB pathway at 1 d. The expression of BDNF did not significantly change from 30 min to 1 d after GJ-IF administration. 4. Blockade of PKA-CREB signaling pathway reversed the antidepressant effects of GJ-IF at 1 d, but not 30 min and 2 h. Conclusion: GJ-IF is the crucial component in the rapid antidepressant of GJ. Rapid and sustained antidepressant effects of GJ-IF were dependent on activating the PKA-CREB signaling pathway.
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Affiliation(s)
- Li Ren
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hailou Zhang
- Interdisciplinary Institute for Personalized Medicine in Brain Disorders and School of Chinese Medicine, Jinan University, Guangzhou, China
| | - Weiwei Tao
- Basic Teaching and Research Department of Integrated Chinese and Western Medicine, College of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yin Chen
- Basic Teaching and Research Department of Integrated Chinese and Western Medicine, College of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Zhilu Zou
- Basic Teaching and Research Department of Integrated Chinese and Western Medicine, College of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - XiaoYan Guo
- Basic Teaching and Research Department of Integrated Chinese and Western Medicine, College of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Qinqin Shen
- Basic Teaching and Research Department of Integrated Chinese and Western Medicine, College of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Quansheng Feng
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jingqing Hu
- Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, China
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5
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Gao F, Yang S, Wang J, Zhu G. cAMP-PKA cascade: An outdated topic for depression? Biomed Pharmacother 2022; 150:113030. [PMID: 35486973 DOI: 10.1016/j.biopha.2022.113030] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/18/2022] [Accepted: 04/21/2022] [Indexed: 11/02/2022] Open
Abstract
Depression is a common neuropsychiatric disorder characterized by persistent depressed mood and causes serious socioeconomic burden worldwide. Hyperactivity of the hypothalamic-pituitary-adrenal (HPA) axis, deficiency of monoamine transmitters, neuroinflammation and abnormalities of the gut flora are strongly associated with the onset of depression. The cyclic AMP (cAMP)/protein kinase A (PKA) cascade, a major cross-species cellular signaling pathway, is supposed as important player and regulator of depression onset by controlling synaptic plasticity, cytokinesis, transcriptional regulation and HPA axis. In the central nervous system, the cAMP-PKA cascade can dynamically shape neural circuits by enhancing synaptic plasticity, and affect K+ channels by phosphorylating Kir4.1, thereby regulating neuronal excitation. The reduction of cAMP-PKA cascade affects neuronal excitation as well as synaptic plasticity, ultimately leading to pathological outcome of depression, while activation of cAMP-PKA cascade would provide a rapid antidepressant effect. In this review, we proposed to reconsider the function of cAMP-PKA cascade, especially in the rapid antidepressant effect. Local activation or indirect activation of PKA through adjusting anchor proteins would provide new idea for acute treatment of depression.
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Affiliation(s)
- Feng Gao
- Key Laboratory of Xin'an Medicine, the Ministry of Education and Key Laboratory of Molecular Biology (Brain diseases), Anhui University of Chinese Medicine, Hefei 230012, China
| | - Shaojie Yang
- Key Laboratory of Xin'an Medicine, the Ministry of Education and Key Laboratory of Molecular Biology (Brain diseases), Anhui University of Chinese Medicine, Hefei 230012, China
| | - Juan Wang
- Key Laboratory of Xin'an Medicine, the Ministry of Education and Key Laboratory of Molecular Biology (Brain diseases), Anhui University of Chinese Medicine, Hefei 230012, China
| | - Guoqi Zhu
- Key Laboratory of Xin'an Medicine, the Ministry of Education and Key Laboratory of Molecular Biology (Brain diseases), Anhui University of Chinese Medicine, Hefei 230012, China.
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Eacret D, Lemchi C, Caulfield JI, Cavigelli SA, Veasey SC, Blendy JA. Chronic Sleep Deprivation Blocks Voluntary Morphine Consumption but Not Conditioned Place Preference in Mice. Front Neurosci 2022; 16:836693. [PMID: 35250468 PMCID: PMC8892254 DOI: 10.3389/fnins.2022.836693] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 01/24/2022] [Indexed: 12/26/2022] Open
Abstract
The opioid epidemic remains a significant healthcare problem and is attributable to over 100,000 deaths per year. Poor sleep increases sensitivity to pain, impulsivity, inattention, and negative affect, all of which might perpetuate drug use. Opioid users have disrupted sleep during drug use and withdrawal and report poor sleep as a reason for relapse. However, preclinical studies investigating the relationship between sleep loss and substance use and the associated underlying neurobiological mechanisms of potential interactions are lacking. One of the most common forms of sleep loss in modern society is chronic short sleep (CSS) (<7 h/nightly for adults). Here, we used an established model of CSS to investigate the influence of disrupted sleep on opioid reward in male mice. The CSS paradigm did not increase corticosterone levels or depressive-like behavior after a single sleep deprivation session but did increase expression of Iba1, which typically reflects microglial activation, in the hypothalamus after 4 weeks of CSS. Rested control mice developed a morphine preference in a 2-bottle choice test, while mice exposed to CSS did not develop a morphine preference. Both groups demonstrated morphine conditioned place preference (mCPP), but there were no differences in conditioned preference between rested and CSS mice. Taken together, our results show that recovery sleep after chronic sleep disruption lessens voluntary opioid intake, without impacting conditioned reward associated with morphine.
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Affiliation(s)
- Darrell Eacret
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Crystal Lemchi
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Jasmine I. Caulfield
- Huck Institute for Life Sciences, Pennsylvania State University, University Park, PA, United States
| | - Sonia A. Cavigelli
- Huck Institute for Life Sciences, Pennsylvania State University, University Park, PA, United States
| | - Sigrid C. Veasey
- Department of Medicine, Center for Sleep and Circadian Neurobiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Julie A. Blendy
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
- *Correspondence: Julie A. Blendy,
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Wang Y, Zhang Y, Shi Z, Di T, Yu W, Chen L. Exposure of male mice to perfluorooctanoic acid induces anxiety-like behaviors by increasing corticotropin-releasing factor in the basolateral amygdala complex. CHEMOSPHERE 2022; 287:132170. [PMID: 34826932 DOI: 10.1016/j.chemosphere.2021.132170] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 08/16/2021] [Accepted: 09/02/2021] [Indexed: 06/13/2023]
Abstract
Perfluorooctanoic acid (PFOA), a hazardous environmental pollutant, has been found to enhance hepatic synthesis of fibroblast growth factor 21 (FGF21). FGF21 can enter the brain and increase the expression of corticotropin-releasing factor (CRF) in the paraventricular nucleus (PVN). In this study, adult male mice were orally administered PFOA to evaluate how it regulates emotion. Exposure of mice to PFOA (1 mg kg-1 bw) for 10 consecutive days (PFOA-mice) caused anxiety-like behaviors and a peroxisome proliferator-activated receptor α (PPARα)-dependent increase in hepatic FGF21 synthesis. The levels of CRF expression in not only PVN but also basolateral amygdala complex (BLA) neurons of PFOA-mice were increased via FGF receptor 1 (FGF-R1) activation. However, the microinjection of FGF-R1 or CRF 1 receptor (CRF-R1) antagonist in the BLA rather than the PVN of PFOA-mice could relieve their anxiety-like behaviors. In addition, external capsule-BLA synaptic transmission in PFOA-mice was enhanced by increasing CRF-R1-mediated presynaptic glutamate release, which was corrected by the blockade of PPARα, FGF-R1 and CRF-R1 or the inhibition of PKA. Furthermore, the threshold of frequency-dependent long-term potentiation (LTP) induction was decreased in the BLA of PFOA-mice, which depended on the activation of PPARα, FGF-R1, CRF-R1, PKA and NMDA receptor (NMDAR), whereas long-term depression (LTD) induction was unchanged. Thus, the results indicate that the exposure of male mice to PFOA (1 mg kg-1 bw) enhances CRF expression in BLA neurons by increasing hepatic FGF21 synthesis, which then enhances CRF-R1-mediated presynaptic glutamate release to facilitate NMDAR-dependent BLA-LTP induction, leading to the production of anxiety-like behaviors.
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Affiliation(s)
- Ya Wang
- Department of Physiology, Nanjing Medical University, Nanjing, 211166, China
| | - Yajie Zhang
- Department of Physiology, Nanjing Medical University, Nanjing, 211166, China
| | - Zhaochun Shi
- Department of Neurology, First Affiliated Hospital of Nanjing Medical University, Guangzhou Road 300, Nanjing, 210029, China
| | - Tingting Di
- Department of Physiology, Nanjing Medical University, Nanjing, 211166, China
| | - Wenfeng Yu
- Key Laboratory of Medical Molecular Biology, Guizhou Medical University, Guiyang, 550004, China.
| | - Ling Chen
- Department of Physiology, Nanjing Medical University, Nanjing, 211166, China.
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Polymorphisms of COMT and CREB1 are associated with treatment-resistant depression in a Chinese Han population. J Neural Transm (Vienna) 2021; 129:85-93. [PMID: 34767111 DOI: 10.1007/s00702-021-02415-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 09/07/2021] [Indexed: 10/19/2022]
Abstract
Genetic factors play a crucial role for the pathophysiology of treatment-resistant depression (TRD). It has been established that Catechol-O-methyltransferase (COMT) and cyclic amp-response element-binding protein (CREB) are associated with antidepressant response. The aim of this study was to explore the association between single nucleotide polymorphisms (SNPs) in COMT and CREB1 genes and TRD in a Chinese population. We recruited 181 patients with major depressive disorder (MDD) and 80 healthy controls, including 81 TRD patients. Depressive symptoms were assessed with the Hamilton Depression Rating Scale-17 (HDRS). Genotyping was performed using mass spectrometry. Genetic analyses were conducted by PLINK Software. The distribution of COMT SNP rs4818 allele and genotypes were significantly different between TRD and controls. Statistical differences in allele frequencies were observed between TRD and non-TRD groups, including rs11904814 and rs6740584 in CREB1 gene, rs4680 and rs4818 in COMT gene. There were differences in the distribution of HDRS total scores among different phenotypes of CREB1 rs11904814, CREB1 rs6740584, COMT rs4680 and rs4818. Gene-gene interaction effect of COMT-CREB1 (rs4680 × rs6740584) revealed significant epistasis in TRD. There findings indicate that COMT and CREB1 polymorphisms influence the risk of TRD and affect the severity of depressive symptoms of MDD.
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Botterill JJ, Khlaifia A, Walters BJ, Brimble MA, Scharfman HE, Arruda-Carvalho M. Off-Target Expression of Cre-Dependent Adeno-Associated Viruses in Wild-Type C57BL/6J Mice. eNeuro 2021; 8:ENEURO.0363-21.2021. [PMID: 34785571 PMCID: PMC8614227 DOI: 10.1523/eneuro.0363-21.2021] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/26/2021] [Accepted: 10/29/2021] [Indexed: 11/21/2022] Open
Abstract
Adeno-associated viruses (AAVs) are a commonly used tool in neuroscience to efficiently label, trace, and/or manipulate neuronal populations. Highly specific targeting can be achieved through recombinase-dependent AAVs in combination with transgenic rodent lines that express Cre-recombinase in specific cell types. Visualization of viral expression is typically achieved through fluorescent reporter proteins (e.g., GFP or mCherry) packaged within the AAV genome. Although nonamplified fluorescence is usually sufficient to observe viral expression, immunohistochemical amplification of the fluorescent reporter is routinely used to improve viral visualization. In the present study, Cre-dependent AAVs were injected into the neocortex of wild-type C57BL/6J mice. While we observed weak but consistent nonamplified off-target double inverted open reading frame (DIO) expression in C57BL/6J mice, antibody amplification of the GFP or mCherry reporter revealed notable Cre-independent viral expression. Off-target expression of DIO constructs in wild-type C57BL/6J mice occurred independent of vendor, AAV serotype, or promoter. We also evaluated whether Cre-independent expression had functional effects via designer receptors exclusively activated by designer drugs (DREADDs). The DREADD agonist C21 (compound 21) had no effect on contextual fear conditioning or c-Fos expression in DIO-hM3Dq-mCherry+ cells of C57BL/6J mice. Together, our results indicate that DIO constructs have off-target expression in wild-type subjects. Our findings are particularly important for the design of experiments featuring sensitive systems and/or quantitative measurements that could be negatively impacted by off-target expression.
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Affiliation(s)
- Justin J Botterill
- Department of Psychology, University of Toronto Scarborough, Toronto, Ontario M1C 1A4, Canada
| | - Abdessattar Khlaifia
- Department of Psychology, University of Toronto Scarborough, Toronto, Ontario M1C 1A4, Canada
| | - Brandon J Walters
- Department of Cell & Systems Biology, University of Toronto Mississauga, Mississauga, Ontario L5L 1C6, Canada
| | - Mark A Brimble
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, Tennnessee 38105
| | - Helen E Scharfman
- Center for Dementia Research, The Nathan Kline Institute for Psychiatric Research, Orangeburg, New York 10962
- Departments of Child & Adolescent Psychiatry, Neuroscience & Physiology, and Psychiatry, and New York University Neuroscience Institute, New York University Langone Health, New York, New York 10016
| | - Maithe Arruda-Carvalho
- Department of Psychology, University of Toronto Scarborough, Toronto, Ontario M1C 1A4, Canada
- Department of Cell and Systems Biology, University of Toronto, Toronto, Ontario M5S 3G5, Canada
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Pascual Cuadrado D, Todorov H, Lerner R, Islami L, Bindila L, Gerber S, Lutz B. Long-term molecular differences between resilient and susceptible mice after a single traumatic exposure. Br J Pharmacol 2021; 179:4161-4180. [PMID: 34599847 DOI: 10.1111/bph.15697] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 07/14/2021] [Accepted: 08/25/2021] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND AND PURPOSE PTSD is a heterogeneous disorder induced by trauma, resulting in severe long-term impairments of an individual's mental health. Interestingly, PTSD does not develop in every individual; thus, some individuals are more resilient than others. However, the underlying molecular mechanisms are poorly understood. Here, we aimed at shedding light on these processes. EXPERIMENTAL APPROACH We used a single-trauma PTSD model in mice to induce long-term maladaptive behaviours and profiled the mice four weeks post-trauma into resilient or susceptible individuals. The phenotype's classification was based on their individual responses in different behavioural experiments. We analysed microbiome, circulating endocannabinoids, and long-term changes in brain phospholipid and transcript levels. KEY RESULTS We found a plethora of molecular differences between resilient and susceptible individuals across multiple molecular domains, including lipidome, transcriptome, and gut microbiome. Some of these differences were stable even several weeks after the trauma, indicating the long-term impact of traumatic stimuli on the organism's physiology. Furthermore, the integration of these multi-layered molecular data revealed that resilient and susceptible individuals have very distinct molecular signatures across various physiological systems. CONCLUSIONS AND IMPLICATIONS We showed that trauma induces individual-specific behavioural responses that, in combination with a longitudinal characterization of mice, can be used to identify distinct sub-phenotypes within the trauma-exposed group. These groups differ significantly not only in their behaviour but also in specific molecular aspects across a variety of tissues and brain regions. This approach may reveal new targets and predictive biomarkers for the pharmacological treatment and prognosis of stress-related disorders.
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Affiliation(s)
- Diego Pascual Cuadrado
- Institute of Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Hristo Todorov
- Institute of Human Genetics, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Raissa Lerner
- Institute of Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | | | - Laura Bindila
- Institute of Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Susanne Gerber
- Institute of Human Genetics, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Beat Lutz
- Institute of Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Mainz, Germany.,Leibniz Institute for Resilience Research; Mainz, Germany
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Li Q, Chen W, Wang C, Liu Z, Gu Y, Xu X, Xu J, Jiang T, Xu M, Wang Y, Chen C, Zhong Y, Zhang Y, Yao L, Jin G, Hu Z, Zhou P. Whole-exome sequencing reveals common and rare variants in immunologic and neurological genes implicated in achalasia. Am J Hum Genet 2021; 108:1478-1487. [PMID: 34197731 DOI: 10.1016/j.ajhg.2021.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 06/02/2021] [Indexed: 11/15/2022] Open
Abstract
Idiopathic achalasia (IA) is a severe motility disorder characterized by neuronal degeneration in the myenteric plexus, but the etiology remains largely unknown. We performed whole-exome sequencing (WES) in 100 IA-affected individuals and 313 non-IA control subjects and validated the results in 230 IA-affected individuals and 1,760 non-IA control subjects. Common missense variants rs1705003 (CUTA, GenBank: NC_000006.11:g.33385953A>G) and rs1126511 (HLA-DPB1, GenBank: NC_000006.11:g.33048466G>T) at 6p21.32 were reproducibly associated with increased risk of IA (rs1126511: OR = 1.83, p = 2.34 × 10-9; rs1705003: OR = 2.37, p = 3.21 × 10-7), meeting exome-wide significance. Both variants can affect the expression of their target genes at the transcript level. An array-based association analysis in 280 affected individuals and 1,121 control subjects determined the same signal at 6p21.32. Further conditional analyses supported that the two missense variants identified in WES-based association study were potential causal variants of IA. For rare variants, the top genes identified by gene-based analysis were significantly enriched in nerve and muscle phenotypic genes in the mouse. Moreover, the functional rare variants in these genes tended to cooccur in IA-affected individuals. In an independent cohort, we successfully validated three rare variants (CREB5, GenBank: NC_000007.13:g.28848865G>T; ESYT3, GenBank: NC_000003.11:g.138183253C>T; and LPIN1, GenBank: NC_000002.11:g.11925128A>G) which heightens the risk of developing IA. Our study identified and validated two common variants and three rare variants associated with IA in immunologic and neurological genes, providing new insight into the etiology of IA.
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Affiliation(s)
- Quanlin Li
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Weifeng Chen
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Cheng Wang
- Department of Epidemiology and Biostatistics, Center of Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; Department of Bioinformatics, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing 211116, China
| | - Zuqiang Liu
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yayun Gu
- Department of Epidemiology and Biostatistics, Center of Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Xiaoyue Xu
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Jiaxing Xu
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Tao Jiang
- Department of Epidemiology and Biostatistics, Center of Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Meidong Xu
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yifeng Wang
- Department of Epidemiology and Biostatistics, Center of Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Congcong Chen
- Department of Epidemiology and Biostatistics, Center of Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Yunshi Zhong
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yiqun Zhang
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Liqing Yao
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Guangfu Jin
- Department of Epidemiology and Biostatistics, Center of Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Zhibin Hu
- Department of Epidemiology and Biostatistics, Center of Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China.
| | - Pinghong Zhou
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai 200032, China.
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12
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Ma ZX, Zhang RY, Rui WJ, Wang ZQ, Feng X. Quercetin alleviates chronic unpredictable mild stress-induced depressive-like behaviors by promoting adult hippocampal neurogenesis via FoxG1/CREB/ BDNF signaling pathway. Behav Brain Res 2021; 406:113245. [PMID: 33745981 DOI: 10.1016/j.bbr.2021.113245] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 03/06/2021] [Accepted: 03/12/2021] [Indexed: 12/22/2022]
Abstract
Quercetin, a naturally occurring flavonoid, has been reported to exert antidepressant effects, however, the underlying mechanisms are still uncertain. Recent studies have demonstrated that Forkhead box transcription factor G1 (FoxG1) regulates the process of adult hippocampal neurogenesis (AHN) and exerts neuroprotective effects. In this study, we explored whether quercetin plays an anti-depressant role via regulation of FoxG1 signaling in mice and revealed the potential mechanisms. To explore the antidepressant effects of quercetin, mice were subjected to behavioral tests after a chronic unpredictable mild stress (CUMS) exposure. We found that chronic quercetin treatment (15 mg/kg, 30 mg/kg) obviously restored the weight loss of mice caused by CUMS and alleviated CUMS-induced depression-like behaviors, such as increased sucrose consumption, improved locomotor activity and shorten immobility time. In addition, to clarify the relationship between quercetin and AHN, we detected neurogenesis markers in the dentate gyrus (DG) of the hippocampus. Furthermore, FoxG1-siRNA was employed and then stimulated with quercetin to further investigate the mechanism by which FoxG1 participates in the antidepressant effects of quercetin. Our results indicate that chronic quercetin treatment dramatically increased the number of doublecortin (DCX)-positive and BrdU/NeuN-double positive cells. Besides, the expression levels of FoxG1, p-CREB and Brain-derived neurotrophic factor (BDNF) were also enhanced by quercetin in the DG. Strikingly, quercetin failed to reverse the levels of p-CREB and BDNF after FoxG1-siRNA was performed in SH-SY5Y cells and Neural Progenitor Cells (NPCs). Our results thus far suggest that quercetin might exert antidepressant effects via promotion of AHN by FoxG1/CREB/ BDNF signaling pathway.
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Affiliation(s)
- Zhong-Xuan Ma
- Department of Pharmacy, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Ru-Yi Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210093, China
| | - Wen-Juan Rui
- Department of Neurology, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Zhi-Qing Wang
- Department of Pharmacy, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
| | - Xia Feng
- Department of Pharmacy, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
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13
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Rebai R, Jasmin L, Boudah A. Agomelatine effects on fat-enriched diet induced neuroinflammation and depression-like behavior in rats. Biomed Pharmacother 2021; 135:111246. [PMID: 33453676 DOI: 10.1016/j.biopha.2021.111246] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 11/24/2020] [Accepted: 01/03/2021] [Indexed: 12/12/2022] Open
Abstract
Growing evidence suggests that a high fat diet (HFD) induces oxidative stress on the central nervous system (CNS), which predisposes to mood disorders and neuroinflammation. In this study we postulated that in addition to improving mood, antidepressant therapy would reverse inflammatory changes in the brain of rats exposed to a HFD. To test our hypothesis, we measured the effect of the antidepressant agomelatine (AGO) on anxiety- and depressive-like behaviors, as well as on CNS markers of inflammation in rats rendered obese. Agomelatine is an agonist of the melatonin receptors MT1 and MT2 and an antagonist of the serotonin receptors 5HT2B and 5HT2C. A subset of rats was also treated with lipopolysaccharides (LPS) to determine how additional neuroinflammation alters behavior and affects the response to the antidepressant. Specifically, rats were subjected to a 14-week HFD, during which time behavior was evaluated twice, first at the 10th week prior to LPS and/or agomelatine, and then at the 14th week after a bi-weekly exposure to LPS (250 μg/kg) and daily treatment with agomelatine (40 mg/kg). Immediately after the second behavioral testing we measured the proinflammatory cytokines tumor necrosis factor alpha (TNF-α), interleukin 6 (IL-6) and interleukin 1 beta (IL-1β), markers of oxidative stress thiobarbituric acid reactive substances (TABRS), catalase (CAT) and glutathione peroxidase (GPx), the growth factor BDNF, as well as the apoptosis marker caspase-3. Our results show that a HFD induced an anxiety-like behavior in the open field test (OFT) at the 10th week, followed by a depressive-like behavior in the forced swim test (FST) at the 14th week. In the prefrontal and hippocampal cortices of rats exposed to a HFD we noted an overproduction of TNF-α, IL-6, IL-1β, and TABRS, together with an increase in caspase-3 activity. We also observed a decrease in BDNF, as well as reduced CAT and GPx activity in the same brain areas. Treatment with agomelatine reversed the signs of anxiety and depression, and decreased the cytokines (TNF-α, IL-6 and IL-1β), TABRS, as well as caspase-3 activity. Agomelatine also restored BDNF levels and the activity of antioxidant enzymes CAT and GPx. Our findings suggest that the anxiolytic/antidepressant effect of agomelatine in obese rats could result from a reversal of the inflammatory and oxidative stress brought about by their diet.
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Affiliation(s)
- Redouane Rebai
- Department of Natural and Life Sciences, Faculty of Exact Sciences and Natural and Life Sciences, University Mohamed Khider of Biskra, BP 145 RP, 07000, Biskra, Algeria; Laboratory of Biotechnology, National Higher School of Biotechnology, Ville universitaire Ali Mendjeli, BP E66 25100, Constantine, Algeria.
| | - Luc Jasmin
- Department of Oral and Maxillofacial Surgery, University of California, San Francisco, 707 Parnassus Ave Suite D-1201, San Francisco, CA, 94143, USA.
| | - Abdennacer Boudah
- Laboratory of Biotechnology, National Higher School of Biotechnology, Ville universitaire Ali Mendjeli, BP E66 25100, Constantine, Algeria.
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14
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Jaddoa E, Masania J, Masiero E, Sgamma T, Arroo R, Sillence D, Zetterström T. Effect of antidepressant drugs on the brain sphingolipid system. J Psychopharmacol 2020; 34:716-725. [PMID: 32403969 DOI: 10.1177/0269881120915412] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Major depression is a common mood disorder and the central sphingolipid system has been identified as a possible drug target of this condition. Here we investigated the action of antidepressant drugs on sphingolipid levels in rat brain regions, plasma and in cultured mouse macrophages. METHODS Two antidepressant drugs were tested: the serotonin reuptake inhibitor paroxetine and the noradrenaline reuptake inhibitor desipramine, either following acute or chronic treatments. Content of sphingosine and ceramide were analysed using LC-MS or HPLC-UV, respectively. This was from samples of brain, plasma and cultured mouse macrophages. Antidepressant-induced effects on mRNA expression for two key genes of the sphingolipid pathway, SMPD1 and ASAH1, were also measured by using quantitative real-time PCR. RESULTS Chronic but not acute administration of paroxetine or desipramine reduced sphingosine levels in the prefrontal cortex and hippocampus (only paroxetine) but not in the striatum. Ceramide levels were also measured in the hippocampus following chronic paroxetine and likewise to sphingosine this treatment reduced its levels. The corresponding collected plasma samples from chronically treated animals did not show any decrease of sphingosine compared to the corresponding controls. Both drugs failed to reduce sphingosine levels from cultured mouse macrophages. The drug-induced decrease of sphingolipids coincided with reduced mRNA expression of two enzymes of the central sphingolipid pathway, i.e. acid sphingomyelinase (SMPD1) and acid ceramidase (ASAH1). CONCLUSIONS This study supports the involvement of brain sphingolipids in the mechanism of action by antidepressant drugs and for the first time highlights their differential effects on brain versus plasma levels.
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Affiliation(s)
- Estabraq Jaddoa
- Leicester School of Pharmacy, De Montfort University, Leicester, UK
| | - Jinit Masania
- Leicester School of Pharmacy, De Montfort University, Leicester, UK
| | - Eva Masiero
- Leicester School of Pharmacy, De Montfort University, Leicester, UK
| | - Tiziana Sgamma
- Leicester School of Pharmacy, De Montfort University, Leicester, UK
| | - Randolph Arroo
- Leicester School of Pharmacy, De Montfort University, Leicester, UK
| | - Daniel Sillence
- Leicester School of Pharmacy, De Montfort University, Leicester, UK
| | - Tyra Zetterström
- Leicester School of Pharmacy, De Montfort University, Leicester, UK
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15
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Bagherpasand N, Mehri S, Jafari Shahroudi M, Tabatabai SM, Khezri A, Fathi M, Abnous K, Imenshahidi M, Hosseinzadeh H. Effect of Topiramate on Morphine-induced Conditioned Place Preference (CPP) in Rats: Role of ERK and CREB Proteins in Hippocampus and Cerebral Cortex. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2020; 18:2000-2010. [PMID: 32184865 PMCID: PMC7059042 DOI: 10.22037/ijpr.2019.1100873] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In this study, the effect of topiramate, as an antiepileptic drug, was evaluated on morphine craving in rats. The conditioned place preference (CPP) test was used for this purpose. Repeated administration of morphine (10 mg/kg, i.p. for 4 days) induced significant CPP. Administration of topiramate (50 and 100 mg/kg, i.p. for 4 days) with each morphine administration decreased the acquisition of morphine-induced CPP. At the next step, the levels of extracellular signal-regulated kinase (ERK), p-ERK, cAMP responsive element binding (CREB), and p-CREB proteins were evaluated in hippocampus and cerebral cortex using western blot analysis. Following the repeated administration of morphine, the level of p-ERK protein markedly enhanced in both tissues, while topiramate could significantly reduce the phosphorylation of ERK in these brain regions. Additionally, the level of CREB and p-CREB proteins did not change in different groups. Memantine as a positive control reduced the acquisition of morphine-induced CPP. Also, memantine significantly decreased the level of p-ERK protein in hippocampus and cerebral cortex. These results demonstrated that topiramate can attenuate the acquisition of morphine-induced CPP in rats. This effect in part can be mediated through down regulation of p-ERK protein in hippocampus and cerebral cortex.
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Affiliation(s)
- Nima Bagherpasand
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Soghra Mehri
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Division of Neurocognitive Sciences, Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahdieh Jafari Shahroudi
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Meghdad Tabatabai
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ali Khezri
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Fathi
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Khalil Abnous
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohsen Imenshahidi
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Hosseinzadeh
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.,Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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16
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Esvald EE, Tuvikene J, Sirp A, Patil S, Bramham CR, Timmusk T. CREB Family Transcription Factors Are Major Mediators of BDNF Transcriptional Autoregulation in Cortical Neurons. J Neurosci 2020; 40:1405-1426. [PMID: 31915257 PMCID: PMC7044735 DOI: 10.1523/jneurosci.0367-19.2019] [Citation(s) in RCA: 123] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 12/10/2019] [Accepted: 12/28/2019] [Indexed: 01/19/2023] Open
Abstract
BDNF signaling via its transmembrane receptor TrkB has an important role in neuronal survival, differentiation, and synaptic plasticity. Remarkably, BDNF is capable of modulating its own expression levels in neurons, forming a transcriptional positive feedback loop. In the current study, we have investigated this phenomenon in primary cultures of rat cortical neurons using overexpression of dominant-negative forms of several transcription factors, including CREB, ATF2, C/EBP, USF, and NFAT. We show that CREB family transcription factors, together with the coactivator CBP/p300, but not the CRTC family, are the main regulators of rat BDNF gene expression after TrkB signaling. CREB family transcription factors are required for the early induction of all the major BDNF transcripts, whereas CREB itself directly binds only to BDNF promoter IV, is phosphorylated in response to BDNF-TrkB signaling, and activates transcription from BDNF promoter IV by recruiting CBP. Our complementary reporter assays with BDNF promoter constructs indicate that the regulation of BDNF by CREB family after BDNF-TrkB signaling is generally conserved between rat and human. However, we demonstrate that a nonconserved functional cAMP-responsive element in BDNF promoter IXa in humans renders the human promoter responsive to BDNF-TrkB-CREB signaling, whereas the rat ortholog is unresponsive. Finally, we show that extensive BDNF transcriptional autoregulation, encompassing all major BDNF transcripts, occurs also in vivo in the adult rat hippocampus during BDNF-induced LTP. Collectively, these results improve the understanding of the intricate mechanism of BDNF transcriptional autoregulation.SIGNIFICANCE STATEMENT Deeper understanding of stimulus-specific regulation of BDNF gene expression is essential to precisely adjust BDNF levels that are dysregulated in various neurological disorders. Here, we have elucidated the molecular mechanisms behind TrkB signaling-dependent BDNF mRNA induction and show that CREB family transcription factors are the main regulators of BDNF gene expression after TrkB signaling. Our results suggest that BDNF-TrkB signaling may induce BDNF gene expression in a distinct manner compared with neuronal activity. Moreover, our data suggest the existence of a stimulus-specific distal enhancer modulating BDNF gene expression.
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MESH Headings
- Animals
- Basic-Leucine Zipper Transcription Factors/physiology
- Brain-Derived Neurotrophic Factor/biosynthesis
- Brain-Derived Neurotrophic Factor/genetics
- Brain-Derived Neurotrophic Factor/pharmacology
- Cells, Cultured
- Cerebral Cortex/cytology
- Cerebral Cortex/metabolism
- Cyclic AMP Response Element-Binding Protein/physiology
- Cytoskeletal Proteins/biosynthesis
- Cytoskeletal Proteins/genetics
- Feedback, Physiological
- Female
- Gene Expression Regulation/genetics
- Genes, Dominant
- Genes, Reporter
- Genes, Synthetic
- Hippocampus/cytology
- Hippocampus/metabolism
- MAP Kinase Signaling System/physiology
- Male
- Nerve Tissue Proteins/biosynthesis
- Nerve Tissue Proteins/genetics
- Nerve Tissue Proteins/physiology
- Neurons/metabolism
- Promoter Regions, Genetic
- Protein Kinase Inhibitors/pharmacology
- Rats
- Rats, Sprague-Dawley
- Receptor, trkB/physiology
- Recombinant Proteins/pharmacology
- Response Elements
- Signal Transduction/physiology
- Species Specificity
- Transcription, Genetic/genetics
- Transduction, Genetic
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Affiliation(s)
- Eli-Eelika Esvald
- Department of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn 12618, Estonia,
- Protobios LLC, Tallinn 12618, Estonia
| | - Jürgen Tuvikene
- Department of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn 12618, Estonia
- Protobios LLC, Tallinn 12618, Estonia
| | - Alex Sirp
- Department of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn 12618, Estonia
| | - Sudarshan Patil
- Department of Biomedicine and KG Jebsen Centre for Neuropsychiatric Disorders, University of Bergen, 5009 Bergen, Norway, and
| | - Clive R Bramham
- Department of Biomedicine and KG Jebsen Centre for Neuropsychiatric Disorders, University of Bergen, 5009 Bergen, Norway, and
| | - Tõnis Timmusk
- Department of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn 12618, Estonia,
- Protobios LLC, Tallinn 12618, Estonia
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17
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Yang CR, Zhang XY, Liu Y, Du JY, Liang R, Yu M, Zhang FQ, Mu XF, Li F, Zhou L, Zhou FH, Meng FJ, Wang S, Ming D, Zhou XF. Antidepressant Drugs Correct the Imbalance Between proBDNF/p75NTR/Sortilin and Mature BDNF/TrkB in the Brain of Mice with Chronic Stress. Neurotox Res 2020; 37:171-182. [PMID: 31493120 DOI: 10.1007/s12640-019-00101-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 08/16/2019] [Accepted: 08/20/2019] [Indexed: 02/08/2023]
Abstract
Depression is a worldwide problem with a great social and economic burden in many countries. In our previous research, we found that the expression of proBDNF/p75NTR/sortilin is upregulated in patients with major depressive disorder. In addition, the treatment of proBDNF antibodies reversed both the depressive behaviors and the reduced BDNF mRNA detected in our rodent chronic stress models. Antidepressant drugs are usually only effective in a subpopulation of patients with major depression with a delayed time window of 2-4 weeks to exert their efficacy. The mechanism underlying such delayed response is not known. In this study, we hypothesize that antidepressant drugs exert their therapeutic effect by modulating proBDNF/p75NTR and mature BDNF/TrkB signaling pathways. To test the hypothesis, C57 mice were randomly divided into normal control, chronic unpredictable mild stress (CUMS), vehicle (VEH), fluoxetine (FLU), and clozapine (CLO) groups. Behavioral tests (sucrose preference, open field, and tail suspension tests) were performed before and after 4 weeks of CUMS. The gene and protein expression of proBDNF, the neurotrophin receptor (p75NTR), sortilin, and TrkB in the cortex and hippocampus were examined. At the protein level, CUMS induced a significant increase in proBDNF, p75NTR, and sortilin production while the TrkB protein level was found to be lower in the cortex and hippocampus compared with the control group. Consistently, at the mRNA level, p75NTR expression increased with reduced BDNF/TrkB mRNA in both cortex and hippocampus, while sortilin increased only in the hippocampus after CUMS. FLU and CLO treatments of CUMS mice reversed all protein and mRNA expression of the biomarkers in both cortex and hippocampus, except for sortilin mRNA in the cortex and proBDNF in the hippocampus, respectively. This study further confirms that the imbalance between proBDNF/p75NTR/sortilin and mBDNF/TrkB production is important in the pathogenesis of depression. It is likely that antidepressant FLU and antipsychotic CLO exert their antidepressant-like effect correcting the imbalance between proBDNF/p75NTR/sortilin and mBDNF/TrkB.
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Affiliation(s)
- C R Yang
- Department of Pathology, The Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, People's Republic of China
| | - X Y Zhang
- Department of Pathology, The Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - Y Liu
- Tianjin Mental Health Center, Tianjin, People's Republic of China
| | - J Y Du
- Tianjin Mental Health Center, Tianjin, People's Republic of China
| | - R Liang
- Department of Pathology, The Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - M Yu
- Department of Pathology, The Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - F Q Zhang
- Department of Neurology, Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - X F Mu
- Department of Clinical Laboratory, Qingdao Central Hospital, Qingdao, Shandong Province, People's Republic of China
| | - F Li
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan Province, People's Republic of China
| | - L Zhou
- The Mental Hospital of Yunnan Province, Kunming, Yunnan Province, People's Republic of China
| | - F H Zhou
- School of Pharmacology and Medical Science, University of South Australia, Adelaide, 5000, Australia
| | - F J Meng
- Department of Thoracic Surgery, Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - S Wang
- Department of Thoracic Surgery, Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - D Ming
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, People's Republic of China.
| | - X F Zhou
- School of Pharmacology and Medical Science, University of South Australia, Adelaide, 5000, Australia.
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18
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Reduced serotonin impairs long-term depression in basolateral amygdala complex and causes anxiety-like behaviors in a mouse model of perimenopause. Exp Neurol 2019; 321:113030. [DOI: 10.1016/j.expneurol.2019.113030] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 07/07/2019] [Accepted: 07/31/2019] [Indexed: 11/19/2022]
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19
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Manners MT, Brynildsen JK, Schechter M, Liu X, Eacret D, Blendy JA. CREB deletion increases resilience to stress and downregulates inflammatory gene expression in the hippocampus. Brain Behav Immun 2019; 81:388-398. [PMID: 31255680 PMCID: PMC6754757 DOI: 10.1016/j.bbi.2019.06.035] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 06/05/2019] [Accepted: 06/22/2019] [Indexed: 01/22/2023] Open
Abstract
The transcription factor CREB (cyclic AMP response element (CRE)-binding protein) is implicated in the pathophysiology and treatment of depression. Structural and functional studies in both animals and humans suggest that abnormalities of the hippocampus may play a role in depression. CREB regulates thousands of genes, yet to date, only a handful that mediate depression or antidepressant response have been identified as relevant CREB targets. In order to comprehensively identify genes regulated by CREB in the hippocampus, we employed translating ribosome affinity purification (TRAP) to detect actively translating mRNAs in wild type and CREB-deficient mice. Using CrebloxP/loxP; RosaLSL-GFP-L10a mice, we conducted whole genome sequencing to identify transcripts only in cells that lack CREB, as introduction of Cre-recombinase simultaneously deleted CREB and expressed GFP-tagged L10a ribosomes that enabled TRAP. We identified over 200 downregulated genes predominantly associated with inflammation and the immune system, including toll-like receptor 1 (TLR1). To determine if baseline disruption in gene expression in the hippocampus of CREB-deficient mice can modulate behavior, we used unpredictable chronic mild stress (UCMS) to produce a set of behavioral alterations with strong validity for depression. We found that CREB-deficient mice demonstrated resilience to the physiological effects of UCMS and also showed changes in affective behaviors specifically in the presence of stress. TLR1 expression was increased following UCMS in control but not in CREB-deficient mice. The results suggest that CREB-mediated regulation of immune system and inflammatory factors may provide additional targets for the treatment of depression.
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Affiliation(s)
- Melissa T. Manners
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Julia K. Brynildsen
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Max Schechter
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Xin Liu
- Biological Basis of Behavior, College of Arts and Sciences, University of Pennsylvania, Philadelphia, PA, USA
| | - Darrell Eacret
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Julie A. Blendy
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA,Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA,Corresponding author at: Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Translational Research Laboratory, 125 South 31 Street, Philadelphia, PA 19104, United States.,
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20
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Sahoo S, S. B. Pharmacogenomic assessment of herbal drugs in affective disorders. Biomed Pharmacother 2019; 109:1148-1162. [DOI: 10.1016/j.biopha.2018.10.135] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 10/20/2018] [Accepted: 10/21/2018] [Indexed: 12/14/2022] Open
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21
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Mondal AC, Fatima M. Direct and indirect evidences of BDNF and NGF as key modulators in depression: role of antidepressants treatment. Int J Neurosci 2018; 129:283-296. [PMID: 30235967 DOI: 10.1080/00207454.2018.1527328] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
PURPOSE Depression is one of the most prevalent, recurrent and life-threatening mental illnesses. However, the precise mechanism underlying the disorder is not yet clearly understood. It is therefore, essential to identify the novel biomarkers which may help in the development of effective treatment. METHODS In this milieu, the profile of the brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF) were considered as biomarkers in the light of pathophysiology of depression and its treatment. RESULTS Previously, we have reported that BDNF level in the postmortem brain of suicide victims was significantly lower than those of normal controls. We also found decreased BDNF levels in the specific brain regions of the learned helplessness model of depression in rat, and was found to increase normal level following chronic fluoxetine hydrochloride treatment. NGF is another important member of neurotrophin, which is dysregulated in the pathophysiology of depression in some models of peripheral nerve damage and stress. The results shown evidences of the effect of antidepressants on modulating depression via the NGF in preclinical and clinical models of depression, but conflicted, therefore make it currently difficult to affirm the therapeutic role of antidepressants. CONCLUSIONS Here, we review some of the preclinical and clinical studies aimed at disclosing the role of BDNF and NGF mediated pathophysiological mechanisms of depression and the new therapeutic approaches targeting those key molecules. In addition, an important link between BDNF, NGF and depression has been discussed in the light of current existing knowledge.
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Affiliation(s)
- Amal Chandra Mondal
- a Laboratory of Cellular and Molecular Neurobiology , School of Life Sciences, Jawaharlal Nehru University , New Delhi , India
| | - Mahino Fatima
- a Laboratory of Cellular and Molecular Neurobiology , School of Life Sciences, Jawaharlal Nehru University , New Delhi , India
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22
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Rafa-Zabłocka K, Kreiner G, Bagińska M, Nalepa I. Selective Depletion of CREB in Serotonergic Neurons Affects the Upregulation of Brain-Derived Neurotrophic Factor Evoked by Chronic Fluoxetine Treatment. Front Neurosci 2018; 12:637. [PMID: 30294251 PMCID: PMC6158386 DOI: 10.3389/fnins.2018.00637] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 08/24/2018] [Indexed: 11/24/2022] Open
Abstract
Neurotrophic factors are regarded as crucial regulatory components in neuronal plasticity and are postulated to play an important role in depression pathology. The abundant expression of brain-derived neurotrophic factor (BDNF) in various brain structures seems to be of particular interest in this context, as downregulation of BDNF is postulated to be correlated with depression and its upregulation is often observed after chronic treatment with common antidepressants. It is well-known that BDNF expression is regulated by cyclic AMP response element-binding protein (CREB). In our previous study using mice lacking CREB in serotonergic neurons (Creb1TPH2CreERT2 mice), we showed that selective CREB ablation in these particular neuronal populations is crucial for drug-resistant phenotypes in the tail suspension test observed after fluoxetine administration in Creb1TPH2CreERT2 mice. The aim of this study was to investigate the molecular changes in the expression of neurotrophins in Creb1TPH2CreERT2 mice after chronic fluoxetine treatment, restricted to the brain structures implicated in depression pathology with profound serotonergic innervation including the prefrontal cortex (PFC) and hippocampus. Here, we show for the first time that BDNF upregulation observed after fluoxetine in the hippocampus or PFC might be dependent on the transcription factor CREB residing, not within these particular structures targeted by serotonergic projections, but exclusively in serotonergic neurons. This observation may shed new light on the neurotrophic hypothesis of depression, where the effects of BDNF observed after antidepressants in the hippocampus and other brain structures were rather thought to be regulated by CREB residing within the same brain structures. Overall, these results provide further evidence for the pivotal role of CREB in serotonergic neurons in maintaining mechanisms of antidepressant drug action by regulation of BDNF levels.
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Affiliation(s)
- Katarzyna Rafa-Zabłocka
- Department of Brain Biochemistry, Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
| | - Grzegorz Kreiner
- Department of Brain Biochemistry, Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
| | - Monika Bagińska
- Department of Brain Biochemistry, Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
| | - Irena Nalepa
- Department of Brain Biochemistry, Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
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23
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Brynildsen JK, Lee BG, Perron IJ, Jin S, Kim SF, Blendy JA. Activation of AMPK by metformin improves withdrawal signs precipitated by nicotine withdrawal. Proc Natl Acad Sci U S A 2018; 115:4282-4287. [PMID: 29610348 PMCID: PMC5910809 DOI: 10.1073/pnas.1707047115] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Cigarette smoking is the leading cause of preventable disease and death in the United States, with more persons dying from nicotine addiction than any other preventable cause of death. Even though smoking cessation incurs multiple health benefits, the abstinence rate remains low with current medications. Here we show that the AMP-activated protein kinase (AMPK) pathway in the hippocampus is activated following chronic nicotine use, an effect that is rapidly reversed by nicotine withdrawal. Increasing pAMPK levels and, consequently, downstream AMPK signaling pharmacologically attenuate anxiety-like behavior following nicotine withdrawal. We show that metformin, a known AMPK activator in the periphery, reduces withdrawal symptoms through a mechanism dependent on the presence of the AMPKα subunits within the hippocampus. This study provides evidence of a direct effect of AMPK modulation on nicotine withdrawal symptoms and suggests central AMPK activation as a therapeutic target for smoking cessation.
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Affiliation(s)
- Julia K Brynildsen
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Bridgin G Lee
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Isaac J Perron
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Sunghee Jin
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21224
| | - Sangwon F Kim
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21224;
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21224
| | - Julie A Blendy
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104;
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24
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Alvarez-Ricartes N, Oliveros-Matus P, Mendoza C, Perez-Urrutia N, Echeverria F, Iarkov A, Barreto GE, Echeverria V. Intranasal Cotinine Plus Krill Oil Facilitates Fear Extinction, Decreases Depressive-Like Behavior, and Increases Hippocampal Calcineurin A Levels in Mice. Mol Neurobiol 2018; 55:7949-7960. [PMID: 29488138 DOI: 10.1007/s12035-018-0916-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Accepted: 01/18/2018] [Indexed: 02/07/2023]
Abstract
Failure in fear extinction is one of the more troublesome characteristics of posttraumatic stress disorder (PTSD). Cotinine facilitates fear memory extinction and reduces depressive-like behavior when administered 24 h after fear conditioning in mice. In this study, it was investigated the behavioral and molecular effects of cotinine, and other antidepressant preparations infused intranasally. Intranasal (IN) cotinine, IN krill oil, IN cotinine plus krill oil, and oral sertraline were evaluated on depressive-like behavior and fear retention and extinction after fear conditioning in C57BL/6 mice. Since calcineurin A has been involved in facilitating fear extinction in rodents, we also investigated changes of calcineurin in the hippocampus, a region key on contextual fear extinction. Short-term treatment with cotinine formulations was superior to krill oil and oral sertraline in reducing depressive-like behavior and fear consolidation and enhancing contextual fear memory extinction in mice. IN krill oil slowed the extinction of fear. IN cotinine preparations increased the levels of calcineurin A in the hippocampus of conditioned mice. In the light of the results, the future investigation of the use of IN cotinine preparations for the extinction of contextual fear memory and treatment of treatment-resistant depression (TRD) in PTSD is discussed.
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Affiliation(s)
- Nathalie Alvarez-Ricartes
- Facultad de Ciencias de la Salud, Universidad San Sebastián, Lientur 1457, 4030000, Concepción, Chile
| | - Patricia Oliveros-Matus
- Facultad de Ciencias de la Salud, Universidad San Sebastián, Lientur 1457, 4030000, Concepción, Chile
| | - Cristhian Mendoza
- Facultad de Ciencias de la Salud, Universidad San Sebastián, Lientur 1457, 4030000, Concepción, Chile
| | - Nelson Perez-Urrutia
- Facultad de Ciencias de la Salud, Universidad San Sebastián, Lientur 1457, 4030000, Concepción, Chile
| | - Florencia Echeverria
- Facultad de Ciencias de la Salud, Universidad San Sebastián, Lientur 1457, 4030000, Concepción, Chile
| | - Alexandre Iarkov
- Facultad de Ciencias de la Salud, Universidad San Sebastián, Lientur 1457, 4030000, Concepción, Chile.
| | - George E Barreto
- Departamento de Nutrición y Bioquímica, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá D.C., Colombia.,Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, Santiago, Chile
| | - Valentina Echeverria
- Facultad de Ciencias de la Salud, Universidad San Sebastián, Lientur 1457, 4030000, Concepción, Chile. .,Bay Pines VA Healthcare System, Research and Development, Bay Pines VAHCS, 10,000 Bay Pines Blvd., Bldg. 23, Rm123, Bay Pines, FL, 33744, USA.
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25
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Postpartum estrogen withdrawal impairs GABAergic inhibition and LTD induction in basolateral amygdala complex via down-regulation of GPR30. Eur Neuropsychopharmacol 2017; 27:759-772. [PMID: 28619359 DOI: 10.1016/j.euroneuro.2017.05.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 03/22/2017] [Accepted: 05/29/2017] [Indexed: 01/22/2023]
Abstract
Postpartum estrogen (E2) withdrawal is known to be a particularly vulnerable time for depressive symptoms. In this study, ovariectomized (OVX) mice were treated with co-administration of estradiol benzoate and progesterone (E2/P4) followed by administration of E2 alone (E2) and a subsequent E2 withdrawal (EW) to mimic the hormonal changes during pregnancy and postpartum. The objective of this study was to investigate the influence of E2 withdrawal after hormone-simulated pregnancy on synaptic function and plasticity in basolateral amygdala complex (BLA). In comparison to control mice, EW mice spent less time in the central portion of open-field test and open arms of elevated plus-maze. Excitatory postsynaptic potentials (EPSPs) slopes at external capsule BLA synapse were reduced in E2/P4-mice, recovered in E2-mice, and increased in EW-mice. EW-mice showed a significant increase in duration of EPSPs and paired-pulse inhibition (PPI) with multi-spike responses of EPSPs and impairment of long-term depression (LTD) induction, which were corrected by GABAAR agonist muscimol. Levels of estrogen receptor (ER) GPR30, ERα and ERβ expression in BLA of EW-mice were lower than those in control mice. The bath-application of GPR30 agonist G-1 in BLA of EW-mice recovered the GABAAR-mediated inhibition and LTD indication, but ERβ agonist DPN or ERα agonist PPT could not. A single BLA-injection of G-1 rather than DPN or PPT in EW-mice could partially relieve the anxiety-like behaviors. The results indicate that postpartum E2 withdrawal causes dysfunction of GABAAR-mediated inhibition in the BLA through reducing GPR30 expression, which impairs LTD induction and causes anxiety-like behaviors.
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26
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Distinct Roles of CREB Within the Ventral and Dorsal Hippocampus in Mediating Nicotine Withdrawal Phenotypes. Neuropsychopharmacology 2017; 42:1599-1609. [PMID: 27848935 PMCID: PMC5518892 DOI: 10.1038/npp.2016.257] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 10/12/2016] [Accepted: 11/09/2016] [Indexed: 01/06/2023]
Abstract
Addiction to nicotine and the inability to quit smoking are influenced by genetic factors, emphasizing the importance of understanding how genes and drugs of abuse mechanistically impact each other. One well-characterized protein responsible for regulating both response to drugs and gene expression is the transcription factor CREB (cAMP-responsive element binding protein). Previous work indicates that hippocampal-specific alterations in CREB signaling and synaptic plasticity may underlie certain nicotine withdrawal phenotypes. However, the structure of the hippocampus possesses dorsal and ventral subregions, each differing in behavioral, anatomic and gene expression characteristics. This study examines the effects of CREB deletion specifically in the ventral or dorsal hippocampus of animals chronically treated with saline, nicotine, or undergoing 24 h withdrawal. After region-specific viral injections of AAV-GFP or AAV-CRE in CREBloxP/loxP animals, behavioral testing measured anxiety levels, using the Novelty-Induced Hypophagia test, and cognition, using a contextual fear conditioning paradigm. Deletion of CREB in the ventral, but not dorsal, hippocampus resulted in amelioration of nicotine withdrawal-induced anxiety-like behavior in the Novelty-Induced Hypophagia test. In contrast, CREB deletion in the dorsal hippocampus resulted in learning and memory deficits in fear conditioning, whereas CREB deletion in the ventral hippocampus showed an enhancement in learning. Gene expression analysis showed differential treatment- and region-dependent alterations of several CREB target genes that are well-known markers of neuroplasticity within the hippocampus. Collectively, these data provide persuasive evidence towards the distinct roles of CREB within the dorsal and ventral hippocampus separately in mediating select nicotine withdrawal phenotypes.
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27
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Li XM, Meng J, Li LT, Guo T, Yang LK, Shi QX, Li XB, Chen Y, Yang Q, Zhao JN. Effect of ZBD-2 on chronic pain, depressive-like behaviors, and recovery of motor function following spinal cord injury in mice. Behav Brain Res 2017; 322:92-99. [PMID: 28108322 PMCID: PMC5339413 DOI: 10.1016/j.bbr.2017.01.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 01/09/2017] [Accepted: 01/12/2017] [Indexed: 02/06/2023]
Abstract
ZBD-2 significantly attenuated the symptoms of chronic SCI-pain and pain-induced depressive-like behaviors. ZBD-2 inhibited the decreases in the expression of synaptic plasticity-related signaling proteins. ZBD-2 reversed chronic, SCI-induced gliocyte activation at the lesion site.
In addition to debilitating sensory and motor deficits, patients with spinal cord injury (SCI) may experience chronic hyperpathic pain (SCI-pain). Recent studies have revealed that translocator protein (TSPO) is involved in repairing neural cells as well as reducing anxiety and depression. However, the role of TSPO in SCI-pain and pain-induced depression remains unknown. The present study aimed to determine the effects of a new TSPO ligand, ZBD-2, on SCI-pain and consequent pain-induced depressive-like behaviors in mice. Treatment with ZBD-2 at either dose significantly attenuated the symptoms of chronic SCI-pain and pain-induced depressive-like behaviors. ZBD-2 reversed SCI-induced elevation of serum corticosterone levels, an index of hyper-activation of the hypothalamic–pituitary–adrenal (HPA) axis. Additionally, administration of ZBD-2 inhibited decreases in the expression of synaptic plasticity-related signaling proteins, including brain-derived neurotrophic factor (BDNF) and cyclic AMP-responsive element binding protein (CREB). Moreover, ZBD-2 administration reversed chronic, SCI-induced gliocyte activation at the lesion site. Therefore, ZBD-2 may improve chronic SCI-pain and pain-induced depressive-like behaviors via suppression of gliocyte activation and restoration of the synaptic plasticity-related signaling systems.
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Affiliation(s)
- Xiao-Ming Li
- Department of Orthopedics, Jinling Hospital, Clinical School of Nanjing, Second Military Medical University, Nanjing, 210002, China
| | - Jia Meng
- Department of Orthopedics, Jinling Hospital, Clinical School of Nanjing, Second Military Medical University, Nanjing, 210002, China
| | - Lin Tao Li
- Department of Orthopedics, Jinling Hospital, Clinical School of Nanjing, Second Military Medical University, Nanjing, 210002, China
| | - Ting Guo
- Department of Orthopedics, Jinling Hospital, Clinical School of Nanjing, Second Military Medical University, Nanjing, 210002, China
| | - Liu-Kun Yang
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, China
| | - Qi-Xin Shi
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, China
| | - Xu-Bo Li
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, China
| | - Yong Chen
- Department of Orthopedics, Jinling Hospital, Clinical School of Nanjing, Second Military Medical University, Nanjing, 210002, China.
| | - Qi Yang
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, China.
| | - Jian-Ning Zhao
- Department of Orthopedics, Jinling Hospital, Clinical School of Nanjing, Second Military Medical University, Nanjing, 210002, China.
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28
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Jung HY, Lee KY, Yoo DY, Kim JW, Yoo M, Lee S, Yoo KY, Yoon YS, Choi JH, Hwang IK. Essential oils from two Allium species exert effects on cell proliferation and neuroblast differentiation in the mouse dentate gyrus by modulating brain-derived neurotrophic factor and acetylcholinesterase. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 16:431. [PMID: 27809818 PMCID: PMC5094052 DOI: 10.1186/s12906-016-1384-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 10/06/2016] [Indexed: 12/21/2022]
Abstract
Background In the present study, we investigated the effects of oil products from two Allium species: Allium sativum (garlic) and Allium hookeri (Chinese chives) on cell proliferation and neuroblast differentiation in the mouse dentate gyrus. Methods Using corn oil as a vehicle, the essential oil from garlic (10 ml/kg), or Chinese chives (10 ml/kg) was administered orally to 9-week-old mice once a day for 3 weeks. One hour following the last treatment, a novel object recognition test was conducted and the animals were killed 2 h after the test. Results In comparison to the vehicle-treated group, garlic essential oil (GO) treatment resulted in significantly increased exploration time and discrimination index during the novel object recognition test, while Chinese chives essential oil (CO) reduced the exploration time and discrimination index in the same test. In addition, the number of Ki67-immunoreactive proliferating cells and doublecortin-immunoreactive neuroblasts significantly increased in the dentate gyrus of GO-treated animals. However, administration of CO significantly decreased cell proliferation and neuroblast differentiation. Administration of GO significantly increased brain-derived neurotrophic factor (BDNF) levels and decreased acetylcholinesterase (AChE) activity in the hippocampal homogenates. In contrast, administration of CO decreased BDNF protein levels and had no significant effect on AChE activity, compared to that in the vehicle-treated group. Conclusions These results suggest that GO significantly improves novel object recognition as well as increases cell proliferation and neuroblast differentiation, by modulating hippocampal BDNF protein levels and AChE activity, while CO impairs novel object recognition and decreases cell proliferation and neuroblast differentiation, by reducing BDNF protein levels in the hippocampus.
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29
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Antony N, McDougall AR, Mantamadiotis T, Cole TJ, Bird AD. Creb1 regulates late stage mammalian lung development via respiratory epithelial and mesenchymal-independent mechanisms. Sci Rep 2016; 6:25569. [PMID: 27150575 PMCID: PMC4858709 DOI: 10.1038/srep25569] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Accepted: 04/20/2016] [Indexed: 02/06/2023] Open
Abstract
During mammalian lung development, the morphological transition from respiratory tree branching morphogenesis to a predominantly saccular architecture, capable of air-breathing at birth, is dependent on physical forces as well as molecular signaling by a range of transcription factors including the cAMP response element binding protein 1 (Creb1). Creb1(-/-) mutant mice exhibit complete neonatal lethality consistent with a lack of lung maturation beyond the branching phase. To further define its role in the developing mouse lung, we deleted Creb1 separately in the respiratory epithelium and mesenchyme. Surprisingly, we found no evidence of a morphological lung defect nor compromised neonatal survival in either conditional Creb1 mutant. Interestingly however, loss of mesenchymal Creb1 on a genetic background lacking the related Crem protein showed normal lung development but poor neonatal survival. To investigate the underlying requirement for Creb1 for normal lung development, Creb1(-/-) mice were re-examined for defects in both respiratory muscles and glucocorticoid hormone signaling, which are also required for late stage lung maturation. However, these systems appeared normal in Creb1(-/-) mice. Together our results suggest that the requirement of Creb1 for normal mammalian lung morphogenesis is not dependent upon its expression in lung epithelium or mesenchyme, nor its role in musculoskeletal development.
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Affiliation(s)
- N. Antony
- Department of Biochemistry & Molecular Biology, Monash University, Clayton, 3800, Victoria, Australia
| | - A. R. McDougall
- Department of Biochemistry & Molecular Biology, Monash University, Clayton, 3800, Victoria, Australia
- The Hudson Institute of Medical Research, Clayton, 3168, Victoria, Australia
| | - T. Mantamadiotis
- Department of Pathology, University of Melbourne, Parkville, 3010, Victoria, Australia
| | - T. J. Cole
- Department of Biochemistry & Molecular Biology, Monash University, Clayton, 3800, Victoria, Australia
| | - A. D. Bird
- Department of Biochemistry & Molecular Biology, Monash University, Clayton, 3800, Victoria, Australia
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30
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Zhang Z, Hong J, Zhang S, Zhang T, Sha S, Yang R, Qian Y, Chen L. Postpartum estrogen withdrawal impairs hippocampal neurogenesis and causes depression- and anxiety-like behaviors in mice. Psychoneuroendocrinology 2016; 66:138-49. [PMID: 26803529 DOI: 10.1016/j.psyneuen.2016.01.013] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 01/11/2016] [Accepted: 01/11/2016] [Indexed: 12/13/2022]
Abstract
Postpartum estrogen withdrawal is known to be a particularly vulnerable time for depressive symptoms. Ovariectomized adult mice (OVX-mice) treated with hormone-simulated pregnancy (HSP mice) followed by a subsequent estradiol benzoate (EB) withdrawal (EW mice) exhibited depression- and anxiety-like behaviors, as assessed by forced swim, tail suspension and elevated plus-maze, while HSP mice, OVX mice or EB-treated OVX mice (OVX/EB mice) did not. The survival and neurite growth of newborn neurons in hippocampal dentate gyrus were examined on day 5 after EW. Compared with controls, the numbers of 28-day-old BrdU(+) and BrdU(+)/NeuN(+) cells were increased in HSP mice but significantly decreased in EW mice; the numbers of 10-day-old BrdU(+) cells were increased in HSP mice and OVX/EB mice; and the density of DCX(+) fibers was reduced in EW mice and OVX mice. The phosphorylation of hippocampal NMDA receptor (NMDAr) NR2B subunit or Src was increased in HSP mice but decreased in EW mice. NMDAr agonist NMDA prevented the loss of 28-day-old BrdU(+) cells and the depression- and anxiety-like behaviors in EW mice. NR2B inhibitor Ro25-6981 or Src inhibitor dasatinib caused depression- and anxiety-like behaviors in HSP mice with the reduction of 28-day-old BrdU(+) cells. The hippocampal BDNF levels were reduced in EW mice and OVX mice. TrkB receptor inhibitor K252a reduced the density of DCX(+) fibers in HSP mice without the reduction of 28-day-old BrdU(+) cells, or the production of affective disorder. Collectively, these results indicate that postpartum estrogen withdrawal impairs hippocampal neurogenesis in mice that show depression- and anxiety-like behaviors.
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Affiliation(s)
- Zhuan Zhang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 86025, China; Department of Anesthesiology, Jiangsu Province Hospital, Nanjing Medical University, Nanjing 86025, China
| | - Juan Hong
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 86025, China; Department of Physiology, Nanjing Medical University, Nanjing 86025, China
| | - Suyun Zhang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 86025, China
| | - Tingting Zhang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 86025, China; Department of Physiology, Nanjing Medical University, Nanjing 86025, China
| | - Sha Sha
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 86025, China; Department of Physiology, Nanjing Medical University, Nanjing 86025, China
| | - Rong Yang
- Department of Obstetrics and Gynecology, Hangzhou First People's Hospital, Hangzhou 860571, China
| | - Yanning Qian
- Department of Anesthesiology, Jiangsu Province Hospital, Nanjing Medical University, Nanjing 86025, China
| | - Ling Chen
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 86025, China; Department of Physiology, Nanjing Medical University, Nanjing 86025, China.
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Kim YR, Kim HN, Hong KW, Shin HK, Choi BT. Anti-depressant effects of phosphodiesterase 3 inhibitor cilostazol in chronic mild stress-treated mice after ischemic stroke. Psychopharmacology (Berl) 2016; 233:1055-66. [PMID: 26686236 DOI: 10.1007/s00213-015-4185-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 12/07/2015] [Indexed: 01/07/2023]
Abstract
RATIONALE Phosphodiesterase 3 (PDE3) inhibitor cilostazol ameliorates negative effects of cerebral hypoperfusion against cerebral ischemic injury through the phosphodiesterase 3-cyclic adenosine monophosphate (cAMP) signaling cascade. OBJECTIVES We investigated the question of whether cilostazol would have an anti-depressant effect on chronic mild stress (CMS)-treated mice after ischemic stroke. METHODS An animal model of post-stroke depression was developed by additional CMS procedures in middle cerebral artery occlusion (MCAO). We performed behavioral, histological, terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL), immunohistochemical, Western blot and enzyme linked immunosorbent assays (ELISA). RESULTS In the open field, sucrose preference, forced swim and Morris water maze test, treatment with cilostazol resulted in reduction of all depressive behaviors examined, particularly in the Morris water maze test. Treatment with cilostazol reduced prominent atrophic changes in the ipsilateral striatum and hippocampus of CMS-treated ischemic mice through inhibition of neuronal cell death and microglial activation. In addition, treatment of the CMS-treated ischemic mice with cilostazol resulted in significantly increased phosphorylation of cAMP response element-binding protein (CREB) and expression of mature brain-derived neurotrophic factor (BDNF) with its receptor tropomyosin receptor kinase B (TrkB) in the ipsilateral striatum and hippocampus. Phosphorylation of CREB was also demonstrated in the dopaminergic neurons of the midbrain. Treatment with cilostazol also resulted in an increased number of newly formed cells and enhanced differentiation into neurons in the ipsilateral striatum and hippocampus. CONCLUSIONS Our results suggest that phosphodiesterase 3 inhibitor cilostazol may have anti-depressant effects on post-stroke depression through inhibition of neurodegeneration in the primary lesion and secondary extrafocal sites and promotion of neurogenesis. These beneficial effects on post-stroke depression may be involved in activation of CREB/BDNF signaling.
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Affiliation(s)
- Yu Ri Kim
- Department of Korean Medical Science, School of Korean Medicine, Pusan National University, Gyeongnam, Yangsan, 626-870, Republic of Korea
| | - Ha Neui Kim
- Department of Korean Medical Science, School of Korean Medicine, Pusan National University, Gyeongnam, Yangsan, 626-870, Republic of Korea.,Korean Medical Science Research Center for Healthy-Aging, Pusan National University, Yangsan, 626-870, Republic of Korea
| | - Ki Whan Hong
- Department of Pharmacology, School of Medicine, Pusan National University, Yangsan, 626-870, Republic of Korea
| | - Hwa Kyoung Shin
- Department of Korean Medical Science, School of Korean Medicine, Pusan National University, Gyeongnam, Yangsan, 626-870, Republic of Korea.,Korean Medical Science Research Center for Healthy-Aging, Pusan National University, Yangsan, 626-870, Republic of Korea.,Division of Meridian and Structural Medicine, School of Korean Medicine, Pusan National University, Gyeongnam, Yangsan, 626-870, Republic of Korea
| | - Byung Tae Choi
- Department of Korean Medical Science, School of Korean Medicine, Pusan National University, Gyeongnam, Yangsan, 626-870, Republic of Korea. .,Korean Medical Science Research Center for Healthy-Aging, Pusan National University, Yangsan, 626-870, Republic of Korea. .,Division of Meridian and Structural Medicine, School of Korean Medicine, Pusan National University, Gyeongnam, Yangsan, 626-870, Republic of Korea.
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32
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Effects of DNA methylation inhibitors and conventional antidepressants on mice behaviour and brain DNA methylation levels. Acta Neuropsychiatr 2016; 28:11-22. [PMID: 26112212 DOI: 10.1017/neu.2015.40] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Stress increases DNA methylation and decreases the expression of genes involved in neural plasticity, while treatment with DNA methyltransferase inhibitors (DNMTi) increases gene expression and induces antidepressant-like effects in preclinical models. Therefore, the aim of the present work was to further investigate the potential antidepressant-like effect induced by DNMTi by evaluating the behavioural effects induced by associating DNMTi treatment with conventional antidepressant drugs in mice submitted to the forced swimming test (FST). In addition, brain levels of DNA methylation were also investigated. METHODS Mice received systemic injections of 5-aza-2'-deoxycytidine (5-AzaD, 0.1, 0.2 mg/kg), RG108 (0.1, 0.2, 0.4 mg/kg), desipramine (DES, 2.5, 5, 10 mg/kg) or fluoxetine (FLX, 5, 10, 20, 30 mg/kg) and were submitted to the FST or to the open field test (OFT). Additional groups received a combination of subeffective doses of 5-AzaD or RG108 (DNMTi) with subeffective doses of DES or FLX (antidepressants). RESULTS Subeffective doses of RG108 (0.1 mg/kg) or 5-AzaD (0.1 mg/kg) in association with subeffective doses of DES (2.5 mg/kg) or FLX (10 mg/kg) induced significant antidepressant-like effects. Effective doses of RG108 (0.2 mg/kg), 5-AzaD (0.2 mg/kg), DES (10 mg/kg) and FLX (20 mg/kg) atenuated stress-induced changes in DNA methylation levels in the hippocampus and prefrontal cortex. None of the treatments induced locomotor effects in the OFT. CONCLUSION These results suggest that DNMTi potentiate the behavioural effects of antidepressant drugs in the FST and that antidepressants, as well as DNMTi, are able to modulate stress-induced changes in DNA methylation in brain regions closely associated with the neurobiology of depression.
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Forcelli PA, Turner JR, Lee BG, Olson TT, Xie T, Xiao Y, Blendy JA, Kellar KJ. Anxiolytic- and antidepressant-like effects of the methadone metabolite 2-ethyl-5-methyl-3,3-diphenyl-1-pyrroline (EMDP). Neuropharmacology 2015; 101:46-56. [PMID: 26365569 DOI: 10.1016/j.neuropharm.2015.09.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 08/03/2015] [Accepted: 09/08/2015] [Indexed: 01/22/2023]
Abstract
The enhancement of GABAergic and monoaminergic neurotransmission has been the mainstay of pharmacotherapy and the focus of drug-discovery for anxiety and depressive disorders for several decades. However, the significant limitations of drugs used for these disorders underscores the need for novel therapeutic targets. Neuronal nicotinic acetylcholine receptors (nAChRs) may represent one such target. For example, mecamylamine, a non-competitive antagonist of nAChRs, displays positive effects in preclinical tests for anxiolytic and antidepressant activity in rodents. In addition, nicotine elicits similar effects in rodent models, possibly by receptor desensitization. Previous studies (Xiao et al., 2001) have identified two metabolites of methadone, EMDP (2-ethyl-5-methyl-3,3-diphenyl-1-pyrroline) and EDDP (2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine), which are considered to be inactive at opiate receptors, as relatively potent noncompetitive channel blockers of rat α3β4 nAChRs. Here, we show that these compounds are likewise highly effective blockers of human α3β4 and α4β2 nAChRs. Moreover, we show that they display relatively low affinity for opiate binding sites labeled by [(3)H]-naloxone. We then evaluated these compounds in rats and mice in preclinical behavioral models predictive of potential anxiolytic and antidepressant efficacy. We found that EMDP, but not EDDP, displayed robust effects predictive of anxiolytic and antidepressant efficacy without significant effects on locomotor activity. Moreover, EMDP at behaviorally active doses, unlike mecamylamine, did not produce eyelid ptosis, suggesting it may produce fewer autonomic side effects than mecamylamine. Thus, the methadone metabolite EMDP may represent a novel therapeutic avenue for the treatment of some affective disorders.
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Affiliation(s)
- Patrick A Forcelli
- Department of Pharmacology & Physiology, Georgetown University School of Medicine, Washington, DC
| | - Jill R Turner
- Department of Pharmacology, Perelman School of Medicine University of Pennsylvania, Philadelphia, PA
| | - Bridgin G Lee
- Department of Pharmacology, Perelman School of Medicine University of Pennsylvania, Philadelphia, PA
| | - Thao T Olson
- Department of Pharmacology & Physiology, Georgetown University School of Medicine, Washington, DC
| | - Teresa Xie
- Department of Pharmacology & Physiology, Georgetown University School of Medicine, Washington, DC
| | - Yingxian Xiao
- Department of Pharmacology & Physiology, Georgetown University School of Medicine, Washington, DC
| | - Julie A Blendy
- Department of Pharmacology, Perelman School of Medicine University of Pennsylvania, Philadelphia, PA
| | - Kenneth J Kellar
- Department of Pharmacology & Physiology, Georgetown University School of Medicine, Washington, DC
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Reversal of age-associated cognitive deficits is accompanied by increased plasticity-related gene expression after chronic antidepressant administration in middle-aged mice. Pharmacol Biochem Behav 2015; 135:70-82. [DOI: 10.1016/j.pbb.2015.05.013] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 04/07/2015] [Accepted: 05/22/2015] [Indexed: 12/22/2022]
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Metabolomic identification of biochemical changes induced by fluoxetine and imipramine in a chronic mild stress mouse model of depression. Sci Rep 2015; 5:8890. [PMID: 25749400 PMCID: PMC4352870 DOI: 10.1038/srep08890] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 02/10/2015] [Indexed: 02/07/2023] Open
Abstract
Metabolomics was applied to a C57BL/6N mouse model of chronic unpredictable mild stress (CMS). Such mice were treated with two antidepressants from different categories: fluoxetine and imipramine. Metabolic profiling of the hippocampus was performed using gas chromatography-mass spectrometry analysis on samples prepared under optimized conditions, followed by principal component analysis, partial least squares-discriminant analysis, and pair-wise orthogonal projections to latent structures discriminant analyses. Body weight measurement and behavior tests including an open field test and the forced swimming test were completed with the mice as a measure of the phenotypes of depression and antidepressive effects. As a result, 23 metabolites that had been differentially expressed among the control, CMS, and antidepressant-treated groups demonstrated that amino acid metabolism, energy metabolism, adenosine receptors, and neurotransmitters are commonly perturbed by drug treatment. Potential predictive markers for treatment effect were identified: myo-inositol for fluoxetine and lysine and oleic acid for imipramine. Collectively, the current study provides insights into the molecular mechanisms of the antidepressant effects of two widely used medications.
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Briand LA, Lee BG, Lelay J, Kaestner KH, Blendy JA. Serine 133 phosphorylation is not required for hippocampal CREB-mediated transcription and behavior. ACTA ACUST UNITED AC 2015; 22:109-15. [PMID: 25593297 PMCID: PMC4341363 DOI: 10.1101/lm.037044.114] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The cAMP response element (CRE)-binding protein, CREB, is a transcription factor whose activity in the brain is critical for long-term memory formation. Phosphorylation of Ser133 in the kinase-inducible domain (KID), that in turn leads to the recruitment of the transcriptional coactivator CREB-binding protein (CBP), is thought to mediate the activation of CREB. However, the importance of phosphorylation for CREB binding to DNA and subsequent gene transcription in vivo is controversial. To definitively address the role of CREB phosphorylation in gene transcription and learning and memory, we derived mutant mice lacking the Ser133 phosphorylation site. These mice exhibit normal CREB-mediated gene transcription for a number of genes implicated in learning and memory processes. Furthermore these mice have no deficits in hippocampus- or striatum-dependent learning. Strikingly, our findings show that CREB phosphorylation at Ser133 is not necessary for CREB binding to CRE sites, CREB-mediated transcription, or CREB-mediated behavioral phenotypes associated with learning and memory.
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Affiliation(s)
- Lisa A Briand
- Department of Psychology, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - Bridgin G Lee
- Department of Pharmacology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania 19104, USA
| | - John Lelay
- Department of Genetics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania 19104, USA
| | - Klaus H Kaestner
- Department of Genetics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania 19104, USA
| | - Julie A Blendy
- Department of Pharmacology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania 19104, USA
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Vogt MA, Inta D, Luoni A, Elkin H, Pfeiffer N, Riva MA, Gass P. Inducible forebrain-specific ablation of the transcription factor Creb during adulthood induces anxiety but no spatial/contextual learning deficits. Front Behav Neurosci 2014; 8:407. [PMID: 25505876 PMCID: PMC4245921 DOI: 10.3389/fnbeh.2014.00407] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Accepted: 11/10/2014] [Indexed: 12/13/2022] Open
Abstract
The cyclic AMP (cAMP)-response element binding protein (CREB) is an activity-dependent transcription factor playing a role in synaptic plasticity, learning and memory, and emotional behavior. However, the impact of Creb ablation on rodent behavior is vague as e.g., memory performance of different Creb mutant mice depends on the specific type of mutation per se but additionally on the background and learning protocol differences. Here we present the first targeted ablation of CREB induced during adulthood selectively in principal forebrain neurons in a pure background strain of C57BL/6 mice. All hippocampal principal neurons exhibited lack of CREB expression. Mutant mice showed a severe anxiety phenotype in the openfield and novel object exploration test as well as in the Dark-Light Box Test, but unaltered hippocampus-dependent long-term memory in the Morris water maze and in context dependent fear conditioning. On the molecular level, CREB ablation led to CREM up regulation in the hippocampus and frontal cortex which may at least in part compensate for the loss of CREB. BDNF, a postulated CREB target gene, was down regulated in the frontal lobe but not in the hippocampus; neurogenesis remained unaltered. Our data indicate that in the adult mouse forebrain the late onset of CREB ablation can, in case of memory functionality, be compensated for and is not essential for memory consolidation and retrieval during adulthood. In contrast, the presence of CREB protein during adulthood seems to be pivotal for the regulation of emotional behavior.
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Affiliation(s)
- Miriam A Vogt
- Department of Psychiatry and Psychotherapy, RG Animal Models in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim / Heidelberg University Mannheim, Germany
| | - Dragos Inta
- Department of Psychiatry and Psychotherapy, RG Animal Models in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim / Heidelberg University Mannheim, Germany
| | - Alessia Luoni
- Department of Pharmacological and Biomolecular Sciences University of Milan, Milan, Italy
| | - Hasan Elkin
- Department of Psychiatry and Psychotherapy, RG Animal Models in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim / Heidelberg University Mannheim, Germany
| | - Natascha Pfeiffer
- Department of Psychiatry and Psychotherapy, RG Animal Models in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim / Heidelberg University Mannheim, Germany
| | - Marco A Riva
- Department of Pharmacological and Biomolecular Sciences University of Milan, Milan, Italy
| | - Peter Gass
- Department of Psychiatry and Psychotherapy, RG Animal Models in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim / Heidelberg University Mannheim, Germany
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Novel antidepressant-like activity of caffeic Acid phenethyl ester is mediated by enhanced glucocorticoid receptor function in the hippocampus. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2014; 2014:646039. [PMID: 25477995 PMCID: PMC4248557 DOI: 10.1155/2014/646039] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 09/16/2014] [Accepted: 09/17/2014] [Indexed: 11/17/2022]
Abstract
Caffeic acid phenethyl ester (CAPE) is an active component of propolis that has a variety of potential pharmacological effects. Although we previously demonstrated that propolis has antidepressant-like activity, the effect of CAPE on this activity remains unknown. The present study assessed whether treatment with CAPE (5, 10, and 20 µmol/kg for 21 days) has an antidepressant-like effect in mice subjected to chronic unpredictable stress via tail suspension (TST) and forced swim (FST) tests. CAPE administration induced behaviors consistent with an antidepressant effect, evidenced by decreased immobility in the TST and FST independent of any effect on serum corticosterone secretion. Western blots, conducted subsequent to behavioral assessment, revealed that CAPE significantly decreased glucocorticoid receptor phosphorylation at S234 (pGR(S234)), resulting in an increased pGR(S220/S234) ratio. We also observed negative correlations between pGR(S220)/(S234) and p38 mitogen-activated protein kinase (p38MAPK) phosphorylation, which was decreased by CAPE treatment. These findings suggest that CAPE treatment exerts an antidepressant-like effect via downregulation of p38MAPK phosphorylation, thereby contributing to enhanced GR function.
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Mizuki D, Matsumoto K, Tanaka K, Thi Le X, Fujiwara H, Ishikawa T, Higuchi Y. Antidepressant-like effect of Butea superba in mice exposed to chronic mild stress and its possible mechanism of action. JOURNAL OF ETHNOPHARMACOLOGY 2014; 156:16-25. [PMID: 25152298 DOI: 10.1016/j.jep.2014.08.014] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 08/12/2014] [Accepted: 08/12/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Butea superba (BS) is a Thai medicinal plant that has been used as a folk medicine to improve physical and mental conditions and to prevent impaired sexual performance in middle-aged or elderly males. We have previously reported that this plant extract could improve cognitive deficits and depression-like behavior in olfactory bulbectomized mice, an animal model of dementia and depression. AIM OF THE STUDY In this study we examined the effect of BS on depression-like behavior in mice subjected to unpredictable chronic mild stress (UCMS) to clarify the antidepressant-like activity of BS and the molecular mechanism underlying this effect. MATERIALS AND METHODS UCMS mice were administered BS daily (300 mg of dried herb weight/kg, p.o.) or a reference drug, imipramine (IMP, 10 mg/kg, i.p.), 1 week after starting the UCMS procedure. We employed the sucrose preference test and the tail suspension test to analyze anhedonia and depression-like behavior of mice, respectively. Serum and brain tissues of mice were used for neurochemical and immunohistochemical studies. The UCMS procedure induced anhedonia and depression-like behavior, and BS treatment, as well as IMP treatment, attenuated these symptoms. UCMS caused an elevation of serum corticosterone level, an index of hyper-activation of the hypothalamic-pituitary-adrenal (HPA) axis, in a manner attenuated by BS and IMP treatment. BS treatment also attenuated UCMS-induced decrease in the expression levels of brain-derived neurotrophic factor (BDNF) mRNA, cyclic AMP-responsive element binding protein (CREB) and a phosphorylated form of N-methyl-d-aspartate receptor subunit NR1, synaptic plasticity-related signaling proteins. Moreover, the UCMS procedure reduced doublecortin-positive cells in the dentate gyrus region of the hippocampus. BS administration reversed these UCMS-induced neurochemical and histological abnormalities. CONCLUSION These results suggest that BS can ameliorate chronic stress-induced depression-like symptoms and that the effects of BS are mediated by restoring dysfunctions of the HPA axis and synaptic plasticity-related signaling systems and neurogenesis in the hippocampus.
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Affiliation(s)
- Daishu Mizuki
- Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama-shi, Toyama 930-0194, Japan
| | - Kinzo Matsumoto
- Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama-shi, Toyama 930-0194, Japan.
| | - Ken Tanaka
- Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama-shi, Toyama 930-0194, Japan
| | - Xoan Thi Le
- Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama-shi, Toyama 930-0194, Japan
| | - Hironori Fujiwara
- Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama-shi, Toyama 930-0194, Japan
| | - Tsutomu Ishikawa
- Graduate School of Pharmaceutical Sciences, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Yoshihiro Higuchi
- Material Development Laboratories, Shiratori Pharmaceutical Co. Ltd., 6-11-24 Tsudanuma, Narashino, Chiba 275-0016, Japan
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Lin P, Wang C, Xu B, Gao S, Guo J, Zhao X, Huang H, Zhang J, Chen X, Wang Q, Zhou W. The VGF-derived peptide TLQP62 produces antidepressant-like effects in mice via the BDNF/TrkB/CREB signaling pathway. Pharmacol Biochem Behav 2014; 120:140-8. [PMID: 24631486 DOI: 10.1016/j.pbb.2014.03.003] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Revised: 02/28/2014] [Accepted: 03/06/2014] [Indexed: 11/19/2022]
Abstract
Recent studies demonstrate that the neuropeptide VGF (nonacronymic)-derived peptide is regulated in the hippocampus by antidepressant therapies. Brain-derived neurotrophic factor (BDNF), tropomyosin-related kinase B (TrkB), cAMP response element-binding protein (CREB) signaling, and monoamine transmitter pathways mediate the behavioral effects of antidepressants, but it is not known if these pathways also contribute to the antidepressant-like effects of VGF-derived peptide TLQP62. Here the antidepressant-like effects of TLQP62 were evaluated by measuring immobility time in the forced swimming and tail suspension tests (FST and TST) following acute microinjection of the TLQP62 (0.25, 0.5 and 1 nmol/side) into the hippocampal CA1 regions. This treatment dose-dependently reduced immobility in the FST and TST compared to phosphate-buffered saline (PBS) infusion without affecting locomotor activity in the open field test (OFT). In addition, daily intrahippocampal microinfusion of TLQP62 (1 nmol/side/day; 21 days) also upregulated the expression of BDNF and the phosphorylation of CREB (pCREB) and TrkB (pTrkB) without altering CREB or TrkB. Blocking tissue plasminogen activator (tPA) by microinfusion of tPASTOP or TrkB activation by microinfusion of K252a 60 min prior to TLQP62 infusion almost completely abolished TLQP62-induced antidepressant-like effects, BDNF upregulation, and CREB/TrkB phosphorylation. In contrast, none of these effects were diminished by pretreatment with the non-specific 5-HT receptor antagonist metergoline, the selective 5-HT1A receptor antagonist NAN-190, the 5-HT synthase inhibitor parachlorophenylalanine, the selective α1-adrenoceptor antagonist prazosin, the β receptor antagonist propranolol, or the D2 receptor antagonist raclopride. Moreover, our study was also to investigate the antidepressant-like effects of TLQP62 (50, 250 and 500 nmol/kg; i.p.) on depression-related behaviors in comparison with fluoxetine (10mg/kg; i.p.). While TLQP62 and fluoxetine showed similar antidepressant-like behavioral effects in the FST of mice. Our present results strongly suggest that activation of BDNF/TrkB/CREB signaling may be involved in the antidepressant-like effects of TLQP62.
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Affiliation(s)
- Peipei Lin
- Ningbo University School of Medicine, Ningbo, Zhejiang 315211, PR China; Zhejiang Provincial Key Laboratory of Pathophysiology of Ningbo University School of Medicine, Ningbo, Zhejiang 315211, PR China
| | - Chuang Wang
- Ningbo University School of Medicine, Ningbo, Zhejiang 315211, PR China; Zhejiang Provincial Key Laboratory of Pathophysiology of Ningbo University School of Medicine, Ningbo, Zhejiang 315211, PR China.
| | - Bing Xu
- No. 97 Hospital, Xuzhou, Jiangsu 221000, PR China
| | - Siyun Gao
- Ningbo University School of Medicine, Ningbo, Zhejiang 315211, PR China; Zhejiang Provincial Key Laboratory of Pathophysiology of Ningbo University School of Medicine, Ningbo, Zhejiang 315211, PR China
| | - Jiejie Guo
- Ningbo University School of Medicine, Ningbo, Zhejiang 315211, PR China; Zhejiang Provincial Key Laboratory of Pathophysiology of Ningbo University School of Medicine, Ningbo, Zhejiang 315211, PR China
| | - Xin Zhao
- Ningbo University School of Medicine, Ningbo, Zhejiang 315211, PR China; Zhejiang Provincial Key Laboratory of Pathophysiology of Ningbo University School of Medicine, Ningbo, Zhejiang 315211, PR China
| | - Huihui Huang
- Ningbo University School of Medicine, Ningbo, Zhejiang 315211, PR China; Zhejiang Provincial Key Laboratory of Pathophysiology of Ningbo University School of Medicine, Ningbo, Zhejiang 315211, PR China
| | - Junfang Zhang
- Ningbo University School of Medicine, Ningbo, Zhejiang 315211, PR China; Zhejiang Provincial Key Laboratory of Pathophysiology of Ningbo University School of Medicine, Ningbo, Zhejiang 315211, PR China
| | - Xiaowei Chen
- Ningbo University School of Medicine, Ningbo, Zhejiang 315211, PR China; Zhejiang Provincial Key Laboratory of Pathophysiology of Ningbo University School of Medicine, Ningbo, Zhejiang 315211, PR China
| | - Qinwen Wang
- Ningbo University School of Medicine, Ningbo, Zhejiang 315211, PR China; Zhejiang Provincial Key Laboratory of Pathophysiology of Ningbo University School of Medicine, Ningbo, Zhejiang 315211, PR China
| | - Wenhua Zhou
- Ningbo University School of Medicine, Ningbo, Zhejiang 315211, PR China; Zhejiang Provincial Key Laboratory of Pathophysiology of Ningbo University School of Medicine, Ningbo, Zhejiang 315211, PR China
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